MESON Chess Problem Database
Problem Display
PID: 261128 (8/8/5K2/2p1NNp1/5k2/b3pP2/4r1n1/Q7 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Neue Zurcher Zeitung, 2016
#2
5 + 7
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...c4
- 2.Qd4#
- 1...c4
- Tries
- 1.Sg3?
- threat
- 2.Sxe2#
- 2.Sh5#
- 1...Re1
- 2.Sh5#
- 1...Ra2
- 2.Sh5#
- 1...Rb2
- 2.Sh5#
- 1...Rc2
- 2.Sh5#
- 1...Rd2
- 2.Sh5#
- 1...Rf2
- 2.Sh5#
- 1...Kxg3!
- threat
- 1.Qf1?
- threat
- 2.Sd3#
- 2.Sg6#
- 1...Rd2
- 2.Sg6#
- 1...Rf2
- 2.Qc4#
- 1...Se1
- 2.Sg6#
- 1...Sh4
- 2.Sd3#
- 1...c4
- 2.Sg6#
- 1...Bb2!
- threat
- 1.Qg1?
- threat
- 2.Qh2#
- 1...Se1
- 2.Qg3#
- 2.Qg4#
- 2.Qxg5#
- 1...Sh4
- 2.Qg3#
- 2.Qg4#
- 2.Qxg5#
- 1...g4!
- threat
- 1.Sg3?
- Keys
- 1.Qh1!
- threat
- 2.Qh2#
- 1...Se1
- 2.Sg6#
- 1...Sh4
- 2.Sd3#
- 1...g4
- 2.Qh6#
- threat
- 1.Qh1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- P(f);N_GUARD::QAR2(A)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(a);::S(D)
- Refutation
- K(e);S_FLIGHT,XS(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(a);::S(C)
- R(a);OGATE::QAR(A)
- S(b);::S(C)
- P(f);::S(C)
- Refutation
- B(c);P_PINS(C)
- Try
- Q(A);
- Threat
- QAB(A)
- Refutation
- P(g);
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- S(b);::S(C)
- P(g);OGATEB::QAB(A)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).